Cryogenic treatment of drill bits: tested 2X lifetime and microstructure analysis скачать в хорошем качестве

Cryogenic treatment of drill bits: tested 2X lifetime and microstructure analysis

I bought some HSS stub drills, and treated half of them with liquid nitrogen, which improved their wear resistance dramatically. I also look at the change in microstructure with an electron microscope. Performance of cryogenically treated M35 HSS drills - http://sci-hub.ru/10.1007/s00170-011-... Performance of cryogenically treated HSS tools - http://sci-hub.ru/10.1016/j.wear.2006... Effects of Cryogenic Treatment on the Strength Properties - http://sci-hub.ru/10.1088/1757-899X/2... LN2 generator video:    • Liquid Nitrogen Generator - Overview   Heat treatment of steel video:    • Intro to heat treatment of steel (hardenin...   Source of drill bits: https://www.mcmaster.com/catalog/125/... Temperature logger (discontinued, unfortunately): https://www.adafruit.com/product/3081 3M fine polishing pads: https://www.amazon.com/Tri-M-Ite-Poli... Delorean patent on cryogenic torsion bar: https://patents.google.com/patent/US4... Steel grain structure inspection, and overall great channel for material analysis:    • Metallography Part II - Microscopic Techni...   Steel grain structure video:    • Grain Structure of Steel   Applied Science on Patreon:   / appliedscience